Hydrogen Storage

The main challenge for wide implementation of hydrogen energy is in the development of efficient hydrogen storage and supply systems, which have to meet a number of requirements.

Compressed hydrogen gas (CHG) in steel and composite cylinders at pressures ranging from 200 to 700 bar are currently the preferred methods for industrial hydrogen storage applications, where liquid hydrogen supply is not available. CHG has advantages of quite high gravimetric hydrogen storage capacity, short refuelling time, and virtually unlimited flow rate of hydrogen supply. At the same time, the volumetric hydrogen storage capacity of the CHG systems is low (< 35 kg H2/m3). These systems also suffer from two main issues - low safety and extremely expensive refuelling infrastructure - both are associated with high pressure of the stored hydrogen.  

How does it work

H2Heat stores large amount of hydrogen atoms using its novel solid-state nanocomposite of complex metallic alloys, state of art tank design and micro-heat transferring system.

Heat out

Heat in

H2 molecule

H2 atoms

The H2 gas, generated by steam reforming, renewable energies via electrolyzer, etc , passes through a special plate to dissociate the H2 molecules to H+ atoms. H2 atoms diffuse into the material and make chemical bond with storage medium atoms via an exothermal process with 7 kWh/kg H2 usable heat at 160C and

​

In de-hydrogenation step the chemical bonds of hydrogen atoms and carrier medium breaks rapidly via an endothermic process with 9 kWh/kgH2 at 160 °C.

Applications

Hydrogen Refueling

There is, one challenge to implement the hydrogen as the fuel of the future: the supply and storage of large amounts of hydrogen at Hydrogen Refueling Stations (HRS). Commercial HRS with >1,000 kg hydrogen stored on-site can thus be realized even in densely populated areas or sites with footprint restrictions. Combined with the low cost of the supply infrastructure, H2Heat’s storage technology can significantly reduce the cost of delivered hydrogen.

Industrial Hydrogen

Renewable Energy Storage

Hydrogen is one of the most commonly used industrial gas globally. There is, however, one challenge in merchant industrial hydrogen: the distribution is expensive, inefficient and associated with risks.

H2Heat is a superior method for delivering hydrogen to merchant industrial markets with lower cost, low-pressure tube trailers. This trailer system achieves significantly higher storage density than compressed hydrogen storage, offering a smaller footprint solution at the customer site. The trailer platform also operates at low pressure (60 bar), which provides safety advantages over compressed hydrogen systems.

Hydrogen is a viable energy storage medium for industrial-scale renewable energy generation via fuel cell – electrolyser system. There is, however, one challenge: the best sites for renewable energy production are typically not at places where the energy, the feedstock or the fuel is needed. Our technology is designed for large quantities of hydrogen transport and storage with high safety standards. H2Heat is an excellent solution for instance linking the renewable energy sector with mobility and industry by transporting and storing large amount of green hydrogen with high safety standard.